The NVIDIA nForce4 SLI was a chipset designed for motherboards that supported AMD Athlon 64 processors. It was released in 2004 and was designed to provide high-performance features for gaming and other demanding applications. The chipset included support for NVIDIA's SLI (Scalable Link Interface) technology, which allowed two compatible graphics cards to be used together to improve graphics performance.
The nForce4 SLI also featured NVIDIA's ActiveArmor firewall technology, which provided hardware-based network security and helped to reduce CPU usage during network traffic. Additionally, it had support for SATA 3Gb/s, RAID, and high-definition audio.
The nForce4 SLI chipset was well-received by the computer enthusiast community and was used in many high-end gaming and workstation systems. Its support for SLI technology made it a popular choice for gamers who wanted to achieve maximum graphics performance.